安宫牛黄丸对脑梗死大鼠血清乳酸脱氢酶同工酶的影响

背景安宫牛黄丸因含有汞、砷成分,其安全性受到关注,有必要进行有效性和安全性评价研究.目的研究生理、病理状态下安宫牛黄丸对机体作用的差异.设计以实验动物为研究对象的随机对照实验.单位一所大学的临床药理研究所.材料实验于2001-03/04在广州中医药大学临床药理研究所完成,广东省医学实验动物中心提供体质量250～300 g SD雄性大鼠24只.方法SD大鼠随机分成4组正常组;正常+安宫牛黄丸组;脑梗死模型组(光化学诱导大鼠大脑中动脉闭塞);脑梗死模型+安宫牛黄丸组.每组6只.给药方法每天胃饲1次,0.13 g/kg,共7 d.主要观察指标血清乳酸脱氢酶同工酶LDH1～5含量.结果正常+安宫牛黄丸组大鼠血清LDH1～3含量比正常组显著升高(P＜0.01),其中正常+安宫牛黄丸组LDH1,LDH2,LDH3的值分别为(17.02±0.46),(14.70±0.18),(15.47±0.13)%,正常组则为(11.25±0.70),(8.26±0.90),(12.86±0.90)%;模型+安宫牛黄丸组大鼠血清LDH3(15.51±2.60,%)比模型组(10.93±2.10,%)显著升高(P＜0.01),LDH4含量显著降低,其值分别为(22.62±3.00)%,(28.18±0.80)%(P＜0.01).结论在局灶性脑梗死病理状态下安宫牛黄丸对机体的损伤作用比在正常生理状态下小,提示安宫牛黄丸在生理、病理状态下,对机体的作用方式存在差异.

Effect of angong niuhuang wan on serum lactate dehydrogenase isoenzymes in rats with cerebral infarction

BACKGROUND: Angong niuhuang wan consists of mercury and arsenic, which has drawn the attention on its safety. It is necessary to carry on the research on evaluation in its availability and safety.OBJECTIVE: To study the mechanic differences of angong niuhuang wan in the organic body physiologically and pathologically.DESIGN: Randomized controlled experiment based on the experimental animals.SETTING: Institute of clinical pharmacology affiliated to a university.MATERIALS: The experiment was performed in Institute of Clinical Phar macology affiliated to Guangzhou University of Traditional Chinese Medicine from March to April in 2001. Guangdong Medical Experimental Animal Center provided 24 SD male rats, weighted varied from 250 g to 300 g.METHODS: SD rats were randomized into 4 groups, named as normal group, normal & angong niuhuang wan group(normal & wan group), model of cerebral infarction group(model group) (The middle cerebral artery embolism was induced in rats by photochemistry. ) and model of cerebral in farction group & angong niuhuang wan group (model & wan group), 6 rats in each group. Medication instruction: gastric feeding was applied once daily, 0. 13 g/kg, totally for 7 days. MAIN OUTCOME MEASURES: contents of lactate dehydrogenase (LDH) isoenzymes, LDH1-5.RESULTS: Contents of serum LDH1-3 in normal & wan group were significantly increased than those in normal group( P ＜ 0.01 ), of which, the values of LDH1, LDH2, LDH3 were(17.02 ±0.46)%, (14.70 ±0. 18)%,(15.47±0.13)% successively in normal & wan group, were(11.25 ± 0. 70) %, (8.26 ± 0. 90) %, ( 12. 86 ± 0.90) % successively in normal group. Content of serum LDH3(15.51 ±2.60)% in model & wan group was significantly increased compared with that in model group(10.93±2.10)% ] (P ＜ 0.01) . The contents of LDH4 were(22.62 ±3.00)% ] and(28. 18 ±0. 80)% respectively in two groups, indicating significantly reducing( P ＜ 0.01 ).CONCLUSION: The organic injury of angong niuhuang wan is less in pathological state of focal cerebral infarction than that in physiological state,suggesting that the mechanic differences of angong niuhuang wan in organic body present in physiological and pathological states.